(1-1/2^2)(1-1/3^2)(1-1/4^2)...(1-1/99^2)(1-1/100^2)
算出结果,并写出过程
(1-1/2^2)(1-1/3^2)(1-1/4^2)...(1-1/99^2)(1-1/100^2)
算出结果,并写出过程
题目是:[1-(1/2)^2][1-(1/3)^2]……吗?
(1+1/2)(1-1/2)(1+1/3)(1-1/3)......(1+1/100)(1-1/100)
=(3/2*4/3*5/4...101/100)(1/2*2/3*3/4...99/100)
=101/2*1/100
=101/200